table.t1 {
    border-spacing: 0;
    margin: auto;
    width: 600px;
    border-left: 1px solid #000;
    border-bottom: 1px solid #000;
}
table.t1 td {
    border: 1px solid #000;
    border-left: 1px solid #ffffff;
    border-bottom: 1px solid #ffffff;
    padding: 15px;
    /* text-align: center; */
}
table.mt thead td {
    background: #fafa;
}
table.mt tbody td:hover{
    background: #fefe;
}
body h1{
    text-align: center;
}